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Elastic pull to refresh compontent developed in Swift

Inspired by this Dribbble post:Pull Down to Refresh byHoang Nguyen

Tutorial on how this bounce effect was achieved can be foundhere.

• Xcode 7 or higher
• iOS 8.0 or higher (may work on previous versions, just did not test it)
• ARC
• Swift 2.0

Open and run the DGElasticPullToRefreshExample project in Xcode to see DGElasticPullToRefresh in action.

pod"DGElasticPullToRefresh"

Add DGElasticPullToRefresh folder into your project.

// Initialize tableViewletloadingView=DGElasticPullToRefreshLoadingViewCircle()loadingView.tintColor=UIColor(red:78/255.0, green:221/255.0, blue:200/255.0, alpha:1.0)tableView.dg_addPullToRefreshWithActionHandler({[weak self]()->Voidin    // Add your logic here    // Do not forget to call dg_stopLoading() at the endself?.tableView.dg_stopLoading()}, loadingView: loadingView)tableView.dg_setPullToRefreshFillColor(UIColor(red:57/255.0, green:67/255.0, blue:89/255.0, alpha:1.0))tableView.dg_setPullToRefreshBackgroundColor(tableView.backgroundColor!)

Do not forget to remove pull to refresh on view controller deinit. It is a temporary solution.

deinit(){    tableView.dg_removePullToRefresh()}

Add pull to refresh without loading view:

func dg_addPullToRefreshWithActionHandler(actionHandler:()->Void)

Add pull to refresh with loading view:

func dg_addPullToRefreshWithActionHandler(actionHandler:()->Void, loadingView:DGElasticPullToRefreshLoadingView?)

You can use built-inDGElasticPullToRefreshLoadingViewCircle or create your own by subclassingDGElasticPullToRefreshLoadingView and implementing these methods:

func setPullProgress(progress:CGFloat){}func startAnimating(){}func stopLoading(){}

Remove pull to refresh:

func dg_removePullToRefresh()

Set auto start loading:

func dg_startLoading()

Change pull to refresh background color:

func dg_setPullToRefreshBackgroundColor(color:UIColor)

Change pull to refresh fill color:

func dg_setPullToRefreshFillColor(color:UIColor)

Please feel free to submit pull requests. Cannot wait to see your custom loading views for this pull to refresh.

Danil Gontovnik

• https://github.com/gontovnik
• https://twitter.com/gontovnik
• http://gontovnik.com/
• danil@gontovnik.com
• http://iostuts.io/author/danil-gontovnik/

The MIT License (MIT)

Copyright (c) 2015 Danil Gontovnik

Permission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the "Software"), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in allcopies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THEAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHERLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THESOFTWARE.